Mathematics · Probability
एक यादृच्छिक चर (random variable) X मान 0, 1, 2, 3 क्रमशः प्रायिकता 2a+130, 8a-130, 4a+130, b के साथ लेता है, जहाँ a, b ∈ R हैं। माना μ और σ क्रमशः X के माध्य और मानक विचलन इस प्रकार हैं कि σ2 + μ2 = 2 है। तो ab बराबर है:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 112
- 260✓
- 33
- 430
सही उत्तर देखें
60
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Probability MCQs →Want more practice questions on Probability?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Probability